GN: aix port along with linux_s390x, linux_ppc64 and linux_ppc64le support.

base/logging.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/logging.h"
 
 #include <limits.h>
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 527 matching lines @@
 LogMessage::LogMessage(const char* file, int line, LogSeverity severity,
                        std::string* result)
     : severity_(severity), file_(file), line_(line) {
   Init(file, line);
   stream_ << "Check failed: " << *result;
   delete result;
 }
 
 LogMessage::~LogMessage() {
   size_t stack_start = stream_.tellp();
-#if !defined(OFFICIAL_BUILD) && !defined(OS_NACL) && !defined(__UCLIBC__)
+#if !defined(OFFICIAL_BUILD) && !defined(OS_NACL) && !defined(__UCLIBC__) && \
+    !defined(OS_AIX)
   if (severity_ == LOG_FATAL && !base::debug::BeingDebugged()) {
     // Include a stack trace on a fatal, unless a debugger is attached.
     base::debug::StackTrace trace;
     stream_ << std::endl;  // Newline to separate from log message.
     trace.OutputToStream(&stream_);
   }
 #endif
   stream_ << std::endl;
   std::string str_newline(stream_.str());
 
@@ skipping 411 matching lines @@
 BASE_EXPORT void LogErrorNotReached(const char* file, int line) {
   LogMessage(file, line, LOG_ERROR).stream()
       << "NOTREACHED() hit.";
 }
 
 }  // namespace logging
 
 std::ostream& std::operator<<(std::ostream& out, const wchar_t* wstr) {
   return out << (wstr ? base::WideToUTF8(wstr) : std::string());
 }